TO EXPORT A MODEL OR DRAWING FROM RHINO:
Choose File > Export Selected or File > Export With Origin to save information in AutoCAD, Illustrator, Sketchup, .stl, and many other file formats.
File > Export With Origin is useful if you want to keep models registered (i. e., correctly aligned) between two or more software applications.
TO IMPORT A MODEL OR DRAWING TO RHINO:
To import a model means to place it within an existing model. Choose File > Import to import an existing digital model or drawing (AutoCAD, Illustrator, SketchUp). Make sure to select the correct file type.
You can also use File > Open to open an existing digital model in Rhino. Make sure to select the correct file type.
NOTE: Rhino will not directly open or import a Revit model. To open or import Revit information to Rhino, use AutoCAD as an intermediary.